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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
//===-- Highlighter.cpp -----------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Core/Highlighter.h"
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#include "lldb/Target/Language.h"
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#include "lldb/Utility/AnsiTerminal.h"
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#include "lldb/Utility/StreamString.h"
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using namespace lldb_private;
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void HighlightStyle::ColorStyle::Apply(Stream &s, llvm::StringRef value) const {
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s << m_prefix << value << m_suffix;
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}
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void HighlightStyle::ColorStyle::Set(llvm::StringRef prefix,
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llvm::StringRef suffix) {
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m_prefix = lldb_utility::ansi::FormatAnsiTerminalCodes(prefix);
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m_suffix = lldb_utility::ansi::FormatAnsiTerminalCodes(suffix);
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}
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void DefaultHighlighter::Highlight(const HighlightStyle &options,
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llvm::StringRef line,
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llvm::Optional<size_t> cursor_pos,
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llvm::StringRef previous_lines,
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Stream &s) const {
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// If we don't have a valid cursor, then we just print the line as-is.
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if (!cursor_pos || *cursor_pos >= line.size()) {
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s << line;
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return;
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}
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// If we have a valid cursor, we have to apply the 'selected' style around
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// the character below the cursor.
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// Split the line around the character which is below the cursor.
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size_t column = *cursor_pos;
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// Print the characters before the cursor.
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s << line.substr(0, column);
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// Print the selected character with the defined color codes.
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options.selected.Apply(s, line.substr(column, 1));
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// Print the rest of the line.
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s << line.substr(column + 1U);
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}
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static HighlightStyle::ColorStyle GetColor(const char *c) {
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return HighlightStyle::ColorStyle(c, "${ansi.normal}");
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}
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HighlightStyle HighlightStyle::MakeVimStyle() {
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HighlightStyle result;
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result.comment = GetColor("${ansi.fg.purple}");
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result.scalar_literal = GetColor("${ansi.fg.red}");
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result.keyword = GetColor("${ansi.fg.green}");
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return result;
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}
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const Highlighter &
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HighlighterManager::getHighlighterFor(lldb::LanguageType language_type,
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llvm::StringRef path) const {
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Language *language = lldb_private::Language::FindPlugin(language_type, path);
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if (language && language->GetHighlighter())
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return *language->GetHighlighter();
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return m_default;
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}
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std::string Highlighter::Highlight(const HighlightStyle &options,
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llvm::StringRef line,
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llvm::Optional<size_t> cursor_pos,
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llvm::StringRef previous_lines) const {
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StreamString s;
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Highlight(options, line, cursor_pos, previous_lines, s);
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s.Flush();
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return s.GetString().str();
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}
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